PBTS4-120 1-4 Series BMS PCB Board Testing Machine for Battery Pack Assembly
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- PBTS4-120 1-4 Series BMS PCB Board Testing Machine for Battery Pack Assembly
Model: PBTS4-120
Series: 1-4
Over discharge current: 120A
User interface: Computer software
Usage: for battery BMS board parameters testing
Type: Automatic
Certification: CE
MOQ: 1 pcs
Leading time: 10-15 days
Warranty: 1 year
- General Details
- Parameters
- Video
PBTS4-120 1-4 Series BMS PCB Board Testing Machine is used to test lithium battery BMS protection board parameters before battery pack assembly or shipment. It helps battery pack manufacturers verify whether the BMS board meets the required protection settings, improving quality control before the battery pack enters final assembly.
This model is suitable for 1-4 series BMS boards with up to 120A over-discharge current testing. It is commonly used for small battery packs, portable power products, power tool packs, light electric vehicle packs and customized lithium battery pack projects.
Machine Function
The PBTS4-120 checks the key protection functions of a BMS PCB board through computer software. Operators can test voltage protection, current protection, delay time, balancing and internal resistance, then use the test result as a quality standard for production and inspection.
- Test BMS overcharge protection voltage and recovery voltage
- Test over-discharge protection voltage and recovery voltage
- Check over-discharge current protection and charging current protection
- Verify short circuit protection performance
- Test equalization opening voltage and real-time balancing current
- Measure BMS board total consumption and single section self-consumption current
- Check overcharge, over-discharge and overcurrent protection delay
- Measure internal resistance of the BMS board
Key Features
- Designed for 1-4 series lithium battery BMS PCB board testing
- Over-discharge current test range up to 120A
- Computer software interface for test parameter setting and result display
- Suitable for BMS manufacturers and lithium battery pack assembly factories
- Supports multiple protection function tests in one machine
- Helps create consistent inspection standards for production staff
- Useful for incoming BMS board inspection and finished pack quality control

Applications
- 1-4 series lithium battery BMS board testing
- Battery pack assembly quality control
- BMS supplier incoming inspection
- Small lithium battery pack production
- Power tool, portable power and light electric vehicle battery pack projects
Machine Details
In battery pack production, an unverified BMS board may cause charging failure, over-discharge risk, balancing problems or abnormal protection behavior. The PBTS4-120 provides a practical way to test the protection board before it is installed into the battery pack, helping reduce rework and after-sales issues.



Why Use a BMS Board Tester?
The BMS is one of the most important safety components in a lithium battery pack. Testing the BMS board before assembly helps confirm protection voltage, protection current, delay time and balancing function, so battery pack manufacturers can reduce hidden defects and improve finished pack reliability.
Information Needed for Quotation
To recommend the correct BMS testing machine, please share the following information:
- BMS series number, such as 1S, 2S, 3S or 4S
- Battery chemistry and nominal voltage
- Required charge and discharge current range
- Protection items that need to be tested
- BMS board connector or wiring method
- Expected daily testing quantity and automation requirement
FAQ
What BMS boards can PBTS4-120 test?
PBTS4-120 is designed for 1-4 series lithium battery BMS PCB boards. For higher series battery packs, XWELL can recommend PBTS6, PBTS10, PBTS16, PBTS20, PBTS24 or PBTS32 models.
What parameters can this BMS tester check?
It can test overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, balancing voltage and current, consumption current, delay time and internal resistance.
Can the tester be used in battery pack production?
Yes. It is suitable for BMS manufacturers, battery pack assembly factories and quality control teams that need stable BMS inspection before pack assembly or shipment.
Related Equipment
- Battery pack spot welding machine for cylindrical cell connection and pack welding
- Battery pack comprehensive testing machine for finished pack function inspection
- Battery charge and discharge aging machine for battery pack cycle testing and aging
- Battery pack assembly line for customized module and pack production projects
- Battery pack accessories and insulation materials for pack assembly support
Request a BMS Testing Solution
If you need to test lithium battery BMS boards for pack production, send us your BMS series number, voltage, current range, connector type and required test items. XWELL can recommend a suitable BMS testing machine for your project.
| No | Item | Parameter | Accuracy |
| 1 | Power supply | AC220V/50Hz | |
| 2 | Power | 800W | |
| 3 | Max overcurrent | 120A | |
| 4 | Test series | 1-4 series | |
| 5 | Voltage reference | Ternary Battery:3.8V | |
| LFP Battery: 3V | |||
| 6 | Overcharge/Overdischarge protection voltage | 0.5-5V | ±5mV |
| 7 | Overcharge/Overdischarge voltage | 0.5-5V | ±5mV |
| 8 | Overcharge protection current | 0-40A | ±0.1A |
| 9 | Overdischarge protection current | 0-120A | ±0.1A |
| 10 | Equilibrium open voltage | 0.5-5V | ±5mV |
| 11 | Equilibrium real-time current | 0-200mA | ±1mA |
| 12 | Overcurrent protection delay | 0-15S | ±1mS |
| 13 | Overcharge/Overdischarge protection delay | 0-20S | ±1mS |
| 14 | Single section self consuming power | 0-500uA | ±1uA |
| 15 | Internal loop resistance | 0-500mΩ | ±1mΩ |
| 16 | Short circuit protection (above 6 series) | 0-9999us | ±1us |
| 17 | Size | 450W*440L*230Hmm | |
| 18 | Weight | 20kg |




